George cabmsll



G; CARNELL. lBlum; PRBssNG MACHINE.

(No Model.)

N0. 283,565. Patented Aug'. 21, 1883.

j/VI/ENTQR .w U WOMWNON vom NEN w s. .n S .W M, .M

N. PETERS, Hammam-Mfwmhmgwn. D. c.

UNITED STATES PATENT Orr-ICE.

GEORGE CARNEIJL, OF PHILADELPHIA, 'PENNSYLVAXIA.

BRICK-PRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 283,565, dated August 21, 1883. applicata moa April 21, lesa (No mmm.)

To aZZ- zel/71,0111, it may concern:

Be it known that I, GEORGE CERNELL, a citizen of' the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Brick-Pressing Maehines, ot which the following is a specification. l

My invent-ion relates to a compact and powerful machine for repressing bricks or other blocks of plastic material, the invention coinprising certain details in the construction of the machine, as fully described hereinafter.

In the accompanying drawings, Figure l is alongitudinal section of the machine; Fig. 2, a transverse section ofthe same, partly in elevatlon, the section being on the line l 2 5 Fig.l

3, a transverse section of part of the machine on the line 3 4; Figs. 4, 5', and 6, views illustrating the operation of the machine, and Fig. 7, a sectional plan view of the mold.

A A are the opposite side frames of the machine, which. support the table B, and have bearings for the driving-shaft I), which carries cams E, F, and Gr.' The cam E acts upon an anti-friction roller carried by the stem a of the lower plunger, J, said stem being guided in bars l) of the frame, and the plunger being adaptedto an opening in the table B. The cams F act upon rollers carried by the arms f of the mold H. and the cam G acts upon apivoted arm, g, the upper end of which is connected by a link, lato the Hanger' of the eharg ing-box K, the latter being free to slide on the table B, which is slotted for the passage of the iiange (See Fig. 3.)

To a stud on the link h is connected one end of a cord, j, said cord passing over pulleys 7c on .the frame, and having at the lower end a weight, j.

Within the mold Il is the upper or tired plunger, M, the stem m of which is supported by a transverse bar, d, of the frame B, the upper portion ofthe stein being threaded for the reception of a nut, l11i/,which rests upon said bar d.

Between the upper end of the stein m and a setscrew, N, in a yoke, a., of the frame is Aa block, P, ot' rubber or other elastic material.

The upper and lower plungers, M and J, are detachable 'from their stems, so that they may be changed to suit thesize ofthe brick to be pressed, and the mold H has detachable side l plates, p, and adjustable end plates, q, to likewise adapt it to bricks of different sizes, the

end plates, q, being acted upon by wedges s, 5 5

upon which bear adjusting-screws s', carried by lugs s`l of the mold, as shownin Figs. 2 and 7.

In the charging-box 1I. is an adjustable plunger, t, and to the front end of said chargingis free to swing outward and upward.

In pressing a brick, the mold H is lowered ont-o the table B, as shown in Fig. 4, and the plunger J is elevated, so as to press the brick in thetmold and between the upper and lower plungers. The mold is then elevated and the plunger J depressed, as shown in Fig. l, and the charging-box K, in which afresh brick has been deposited, is broughtforward. The hinged iiap w strikes the pressed` brick and moves the same from the plunger J onto the Y rear portion of the table B, as shown in Fig.

5, the forward movement ofthe chargingbox continuing until the fresh brick has been deposited on the plunger J, when the box is retraeted, the hinged iiap yieldingas it passes the brick, as shown in Fig. 6v.

The front portion of thetable B is somewhat higher than the rear portion, and the plunger J, when depressed, descends to the level of the latter portion, so that a shoulder is presented to retain the brick on the plunger when the charging-box is retracted.

rlhe adjustable plunger t of the charging-'box provides for the proper disposal of the fresh brick onto the plunger J, the plunger t being so adjusted that on the forward movement of the charging-box said plunger will coincide with the rear edge of the plunger J.

parted to the brick, the upper plunger, M, will yield, owing to the interposition of the elastic block IJ between the stein ni and the screw N, the latter being adjustedto regulate the press- UIQ.

The press can be'used for pressing blocks of any plastic material as well as bricks, and, if desired, an endless belt may be usedto convey the rough blocks to the charging-box and the -finished blocks from the table B.

Instead of permitting the mold II to fall by its own weight, cams maybe used for lowering the same as well as for raising it.

I' claim as my inventionbox is hung a pivoted door or iiap, w, which 6o In the event of undue pressure being im- 9o IOO 1. The combination of the mold and plun- 5. The combination of the mold,v plungers, gers with the charging-box, having it hinged and charging-box With'the table, having one ap, w, as set forth. j portion ,higher than the other, as set forth. 15

- 2. The combination of the mold and plun- In testimony whereof Ihzwe signed my 11eme 5 gers with the ohargin g-hox, having the adjustto this specification in the presence of two suhable plunger t, as set forth. soribing Witnesses.

3. The combination of the mold with the encl plates, q, and adjustable Wedge-blocks s, GEORGE GAR-NELL. es set forth. Y n

-- 1o 4. The combination ofthe mold, the movable l fitnessesz plunger J, the plunger M, regulating-screw N, mld elastic block l), as set forth.

HARRY L( AsHnNFnLTnR, HARRY SMITH. 

